* {
    margin: 0;
    padding: 0;
    text-decoration: none;
    list-style: none;
  }
  .fl {
    float: left;
  }
  .fr {
    float: right;
  }
  .clearfix:after {
    content:".";
    display: block;
    height: 0;
    clear: both;
    visibility: hidden;
  }